Quality Data |  |
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| Nutrient data for the following minerals are included in NutriBase Personal, Persona Pus, Professional and higher editions:
Calcium (mg), Copper (mg), Chloride (mg)*, Chromium (mcg)*, Fluoride (mg)*, Iodine (mcg)*, Iron (mg), Magnesium (mg), Manganese (mg), Molybdenum (mcg)*, Phosphorus (mg), Potassium (mg), Selenium (mcg), Sodium (mg), Zinc (mg) * Chloride, Chromium, Iodine, and Molybdenum values were not provided by the USDA Nutrient Data Laboratories. All values for these components contained in this software were taken from data provided by manufacturers. Most of this information appears in the categories labeled" "Vitamin and Mineral Supplements," "Sports and Diet Nutritionals," and "Medical Nutritionals." Levels of minerals for most foods were determined by methods of the AOAC (2003). Calcium, iron, magnesium, phosphorus, sodium, potassium, zinc, copper, and manganese were usually determined by atomic absorption (AOAC 985.35) and inductively coupled plasma emission spectrophotometry (AOAC 984.27) Analytical data for selenium were published earlier by USDA (1992) and were determined by the modified selenium hydride and fluorometric methods. Selenium values from the NFNAP were determined by either the modified selenium hydride (AOAC 986.15) or stable isotope dilution gas chromatography-mass spectrometry (Reamer and Veillon, 1981) methods. The selenium content of plants, in particular cereal grains, is strongly influenced by the quantity of biologically available selenium in the soil in which the plants grow, that is, by their geographical origin (Kubota and Allaway, 1972). The values given are national averages and should be used with caution when levels of selenium in locally grown foods are of interest or concern. Values for fluoride, previously released in the USDA National Fluoride Database of Selected Beverages and Foods, Release 2 (USDA, 2005) have been incorporated into SR19, but other analyzed values, including regional values, are not included in SR. Samples were analyzed using a fluoride ion-specific electrode direct read method (VanWinkle, 1995) for clear liquids and a micro-diffusion method (VanWinkle, 1995) for other food samples. Related topics include Proximates, Vitamins, Amino Acids, and Fatty Acids. |
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